ZHANG, Ruda March 16, 2020:  More on random processes. [61eb144]
ZHANG, Ruda February 17, 2020:  Fourier transforms. [3406293]
ZHANG, Ruda February 24, 2019:  Fix PDF links [72277e6]
ZHANG, Ruda October 04, 2018:  Corrections to manifold learning [3da1eb0]
ZHANG, Ruda September 30, 2018:  More on scientific research. [83d9646]
ZHANG, Ruda September 30, 2018:  CSS redesign; more edits. [dd44d96]
ZHANG, Ruda March 23, 2018:  More on WADGPS, map elements; topology/manifold, math branches, Taleb on probability [46880f6]
ZHANG, Ruda October 12, 2017:  Markov and Gibbs random fields. [35928ba]
Ruda Zhang June 26, 2016:  Entry page overhaul. [d0c7379]
Ruda Zhang June 26, 2016:  one sentence per line [e15360a]
Ruda Zhang June 26, 2016:  add category tag to wiki pages [a9b356c]
Ruda Zhang June 26, 2016:  Fix img link paths. [1e0a8bd]
Ruda Zhang June 26, 2016:  fix pdf link path and use external link style [570ec4f]
Ruda Zhang June 26, 2016:  use canonical filename and no internal H1 [eeca8ff]